The potential of human motion energy is vast, but it is not easily harnessed due to its low frequency and irregular nature. Traditional methods of electromagnetic power generation are not efficient in collecting this energy without hindering normal human activities. In order to overcome this challenge, researchers have turned to a new energy harvesting method called triboelectric nanogenerator (TENG). This method is able to efficiently collect low-frequency and irregular mechanical energy such as vibrations, sound waves, and raindrops. However, there is a catch - the TENG must be flexible, stretchable, and wearable in order to be used on the human body.
To achieve this flexibility and stretchability, scientists have been using the properties of the material itself. However, a team of Chinese researchers has found a unique solution by applying the art of paper-cutting to the development of TENG. They have successfully created a wearable TENG that is stretchable, breathable, and based on non-stretchable materials.
This wearable TENG has the potential to extend the battery life of electronic devices and even enable them to be self-powered. It has great potential in the field of wearable electronic devices, providing an in-situ energy solution. According to Prof. Kai Dong, "Power supply is a major obstacle in the development of wearable electronic devices. Currently, these devices rely on traditional chemical batteries which limit their sustainability. Harvesting human motion energy to power these devices is an ideal solution for in-situ energy solutions."
This technology has the ability to advance the development of wearable electronic products and provide a green and convenient energy supply method. The study has been published in the journal Materials Futures.